Evolutionary psychology

Reducing variation to identify the most adaptive trait for the environment the individual finds themselves in and this characteristics is passed on across generations

1 of 64

What do 2 traits that develop?

A traits has 'fitness' which indicates adaptation in terms of two qualities of off spring; 1) fecudity (Number of offspring) and 2) survivorship (Live long enough to reproduce), traits develop as fitness indicators

2 of 64

What is inter-sexual?

Mate selection

3 of 64

What is intra sexual?

Competition

4 of 64

What are extremes?

Selected against, common in stable environments, extreme birth weight in babies is selected against

5 of 64

What is heritability?

Proportion of total phenotypic variation in the population that is due to genetic variation - h2 = Gv / Gv +Ev

6 of 64

What is H2 based?

Idea that G and E are independent. We know this is not true. The gene- environment correlation (Gecorrelation)

7 of 64

Not all genetic variance is transmitted from one generation to the next?

only additive effects, dominance (Interaction of alleles at same locus of chromosome) and epistasis (Interaction of alleles at different loci of chromosome) are not

Use experience sampling methods, looking at the natural history of behaviour, assess people at multiple time points (4-8 times a day)

52 of 64

What is the finding for behavioural plasticity?

refers to a change in an organism's behavior that results from exposure to stimuli, such as changing environmental conditions

53 of 64

What is the second finding?

Individuals have a central tendency and these are very stable, there is also stability in the amount of variability therefore variation is fairly stable and a part of personality to be studied

54 of 64

What is the extant that the behaviour is indicative of the personality trait?

Tendency to differ with respect to average behaviours, extraverts are moderately extraverted 5-10% more than introverts, personality traits predict mean and extreme behaviour

55 of 64

What is the socio genomic model?

This implies that both the expression of behaviours associated with trait and the mean level of trait can vary in the environment, biological factors, environment, states and biology

56 of 64

What do the military have?

Less agreeableness

57 of 64

What does sexually selected traits show?

Variability otherwise choice and competition are not possible, if we were all the same (homogenous) on a trait then who would you whoose to be a sexual partner

58 of 64

What are Miller and Todd's two stage lens model?

Physical attractiveness, intelligence, social status, personality

59 of 64

What did Iredale do?

Participant plays a number of economic games and indicates how much they would donate to charity. Play on their own or in dyads watched by someone of the same or opposite sex.

60 of 64

What were the results?

For men only, when observed by a female they donate more

61 of 64

What is the costly singaling theory?

Hard to fake indicators of an animals fitness, costly signals offers a solution to the problem of cheating/lying/ faking,

62 of 64

Therefore the signal has to be?

The signal has to be high cost, so that only healthy, high status, high condition animals are able to produce and maintain it. Therefore, it is a reliable indicator of evolutionary fitness

63 of 64

What is the preference and trait expression?

Preference for a trait (e.g., openness) and the trait itself should not only be correlated in terms of responses but also at a genetic on level. Both variation in the preference for the trait and the trait itself have to pass onto the next generation

Test yourself on this resource another way...

...or combine it with others

Other cards in this set

Card 2

Front

What do 2 traits that develop?

Back

A traits has 'fitness' which indicates adaptation in terms of two qualities of off spring; 1) fecudity (Number of offspring) and 2) survivorship (Live long enough to reproduce), traits develop as fitness indicators